LM49352 datasheet(77/106 Pages) TI

部件名	LM49352

功能描述	Boomer Mono Class D Audio Codec Subsystem with Ground Referenced Headphone Amplifiers, Earpiece Driver, and Audio DSP

PDF	106 Pages

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制造商	TI [Texas Instruments]

网页	http://www.ti.com

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LM49352

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SNAS467E – MARCH 2009 – REVISED MARCH 2013

Table 61. SOFTCLIP1 (0x90h) (continued)

Bits

Field

Description

SOFT_KNEE

If set, the audio compressor will automatically apply higher compression ratios to audio

signals higher than the threshold level. As the audio signal approaches levels higher than

the threshold, SOFT_KNEE will increase the compression RATIO. The highest

compression that the SOFT_KNEE algorithm will apply is the compression that is set by

RATIO.

Table 62. SOFTCLIP2 (0x91h)

Bits

Field

Description

4:0

RATIO

This sets the ratio at which the audio is compressed to when it passes beyond the

threshold. In SOFT_KNEE mode this is the final level of compression.

RATIO

Ratio

00000

1:1 (Bypass)

00001

1:1.2

00010

1:1.4

00011

1:1.7

00100

1:2.0

00101

1:2.4

00110

1:2.8

00111

1:3.4

01000

1:4.0

01001

1:4.7

01010

1:5.7

01011

1:6.7

01100

1:8.0

01101

1:9.5

01110

1:11.3

01111

1:13.5

10000

1:16.0

10001

1:19.0

10010

1:22.8

10011

1:27.0

10100

1:32.0

10101

1:37.9

10110

1:45.5

10111

1:53.9

11000

1:64.0

11001

1:75.0

11010

1:91.0

11011

1:108

11100

1:128

11101

1:152

11110

1:182

11111

1:215

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